The identity of Adenia schweinfurthii Engler (Passifloraceae), with a key to the African species of Adenia section Blepharanthes (J.E. Smith) Miquel

Notes are given on Adenia sect. Blepharanthes (Passifloraceae) in Africa, with a key to the species. Adenia schweinfurthii Engler is a species restricted to eastern Central Africa, not occurring in West- and all over East Africa as was often assumed. Adenia lobata (Jacq.) Engler is restricted to West Africa. The in Africa widely spread species should be called Adenia rumicifolia Engler. Lectotypes are chosen from isotype material for both Adenia schweinfurthii and Adenia rumicifolia of which the holotypes were lost in Berlin. Adenia miegei Ake Assi is reduced to a variety of Adenia rumicifolia.